<template>
  <div class="register">
    <el-form
      ref="registerRef"
      :model="registerForm"
      :rules="registerRules"
      class="register-form"
    >
      <h3 class="title">后台管理系统</h3>
      <el-form-item prop="username">
        <el-input
          v-model="registerForm.username"
          type="text"
          size="large"
          auto-complete="off"
          placeholder="账号"
        >
          <template #prefix
            ><svg-icon icon-class="user" class="el-input__icon input-icon"
          /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="registerForm.password"
          type="password"
          size="large"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter="handleRegister"
        >
          <template #prefix
            ><svg-icon icon-class="password" class="el-input__icon input-icon"
          /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="confirmPassword">
        <el-input
          v-model="registerForm.confirmPassword"
          type="password"
          size="large"
          auto-complete="off"
          placeholder="确认密码"
          @keyup.enter="handleRegister"
        >
          <template #prefix
            ><svg-icon icon-class="password" class="el-input__icon input-icon"
          /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          size="large"
          v-model="registerForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter="handleRegister"
        >
          <template #prefix
            ><svg-icon icon-class="validCode" class="el-input__icon input-icon"
          /></template>
        </el-input>
        <div class="register-code">
          <img :src="codeUrl" @click="getCode" class="register-code-img" />
        </div>
      </el-form-item>
      <el-form-item style="width: 100%">
        <el-button
          :loading="loading"
          size="large"
          type="primary"
          style="width: 100%"
          @click.prevent="handleRegister"
        >
          <span v-if="!loading">注 册</span>
          <span v-else>注 册 中...</span>
        </el-button>
        <div style="float: right">
          <router-link class="link-type" :to="'/login'"
            >使用已有账户登录</router-link
          >
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-register-footer">
      <span>Copyright © 2024-2024 ibaize.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script setup>
  import { ElMessageBox } from "element-plus";
  import { getCodeImg, register } from "@/api/login";

  const router = useRouter();
  const { proxy } = getCurrentInstance();

  const registerForm = ref({
    username: "",
    password: "",
    confirmPassword: "",
    code: "",
    uuid: "",
  });

  const equalToPassword = (rule, value, callback) => {
    if (registerForm.value.password !== value) {
      callback(new Error("两次输入的密码不一致"));
    } else {
      callback();
    }
  };

  const registerRules = {
    username: [
      { required: true, trigger: "blur", message: "请输入您的账号" },
      {
        min: 2,
        max: 20,
        message: "用户账号长度必须介于 2 和 20 之间",
        trigger: "blur",
      },
    ],
    password: [
      { required: true, trigger: "blur", message: "请输入您的密码" },
      {
        min: 5,
        max: 20,
        message: "用户密码长度必须介于 5 和 20 之间",
        trigger: "blur",
      },
    ],
    confirmPassword: [
      { required: true, trigger: "blur", message: "请再次输入您的密码" },
      { required: true, validator: equalToPassword, trigger: "blur" },
    ],
    code: [{ required: true, trigger: "change", message: "请输入验证码" }],
  };

  const codeUrl = ref("");
  const loading = ref(false);
  const captchaEnabled = ref(false);

  function handleRegister() {
    proxy.$refs.registerRef.validate((valid) => {
      if (valid) {
        loading.value = true;
        register(registerForm.value)
          .then((res) => {
            const username = registerForm.value.username;
            ElMessageBox.alert(
              "<font color='red'>恭喜你，您的账号 " +
                username +
                " 注册成功！</font>",
              "系统提示",
              {
                dangerouslyUseHTMLString: true,
                type: "success",
              }
            )
              .then(() => {
                router.push("/login");
              })
              .catch(() => {});
          })
          .catch(() => {
            loading.value = false;
            if (captchaEnabled) {
              getCode();
            }
          });
      }
    });
  }

  function getCode() {
    getCodeImg().then((res) => {
      captchaEnabled.value = res.data.captchaEnabled;
      if (captchaEnabled.value) {
        codeUrl.value = res.data.img;
        loginForm.value.uuid = res.data.uuid;
      }
    });
  }

  if (captchaEnabled.value) {
    getCode();
  }
</script>

<style lang="scss" scoped>
  .register {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url("../assets/images/login-background.jpg");
    background-size: cover;
  }
  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
  }

  .register-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;
    .el-input {
      height: 40px;
      input {
        height: 40px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 0px;
    }
  }
  .register-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }
  .register-code {
    width: 33%;
    height: 40px;
    float: right;
    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }
  .el-register-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }
  .register-code-img {
    height: 40px;
    padding-left: 12px;
  }
</style>
